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What is the efficiency of a 240 volt single phase 3 horse power motor which draws 12 amps under full load?
This might be a homework question, in which case you find the power, which is 3 x 746 watts, and divide by the voltage to find the current taken if the efficiency is 100%, and that is 9.325 amps. So the efficiency is 9.325/12 or 77.7%.
In practice the question is complicated by the power factor of the motor, which means that the watts taken are less than the volts times amps. The power factor could well be 0.777, in which case the efficiency would be 100%.
What else can I help you with?
A dc motor running on a potential difference of 25V draws 9.8A It lifts a load of 48lb 12ft?
A dc motor running on a potential difference of 25 volts draws 9.8 A. It lifts a load of 48 pounds 12 feet in 5.5 seconds. How much work does the motor do? How much power does it deliver? How much poser does it consume? What is its efficiency?
Can you replace a three phase motor 3 Hp RPM 1420 with a single phase motor for a planer?
Probably not. The single phase three horse power motor will be much larger in physical size than its three phase counterpart, and will probably not fit.
An electric motor draws a current of 11.5 A in a 240 V circuit What is the power of this motor in W?
11.5 x 240 = 2760W motor.
Are all large motors three-phase?
Yes, most large motors are three phase. Usually single phase motors only go up to 10 HP. Larger than this and the wire size and contactors used to control the motors becomes extreme. For example a single phase 10 HP motor on 115 volts draws 100 amps. The same single phase motor on 230 volts draws 50 amps. The same 10 HP motor on three phase system draws the following amperage; 230 volts is a 28 amp draw, 460 volts is a 14 amp draw and 575 volts is a 11 amp draw. As you can see the higher the voltage becomes, the smaller the wire feeder size is needed and much smaller size contactor can be used to control the motor.
One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false if true why?
True. A single-phase motor typically has a lower starting torque and may operate less efficiently than a three-phase motor, leading to higher heat generation during operation. Additionally, single-phase motors often have poorer thermal dissipation due to their design, making them more susceptible to overheating under load compared to the more efficient and balanced operation of a three-phase motor.
What is the max size single phase motor that will run of a 13 amp domestic socket?
It depends on the type of motor, efficiency, power factor, and loading on the motor. I have a 1 hp motor that draws ~13A full load, ~7A light load. When first switched, it can draw in excess of 30A, but this is a short enough period it normally will not trip the circuit breaker.A 1 HP motor running at 80% efficiency with a typical 0.7 power factor draws 5½ amps on a 240 v system. A 13-amp UK socket should allow a 2 HP motor.
A dc motor running on a potential difference of 25V draws 9.8A It lifts a load of 48lb 12ft?
A dc motor running on a potential difference of 25 volts draws 9.8 A. It lifts a load of 48 pounds 12 feet in 5.5 seconds. How much work does the motor do? How much power does it deliver? How much poser does it consume? What is its efficiency?
How many amper of the 1horse power?
A 1 horsepower motor typically draws around 10 amps at 120 volts and 5 amps at 240 volts. The actual amperage can vary depending on the efficiency and design of the motor.
What is the most efficient type of single Phase motor?
The British Lynch axial-gap dc motor. With a typical efficiency of around 90%, it can achieve the same efficiency as a 3-phase AC motor, but with far easier control over speed and torque.
How many amps will a 3 hp motor pull on 230 volts?
It depends on the voltage of the motor, and whether it is single-phase or 3-phase. A 120 VAC 2HP single phase motor draws almost 20 amps, a 240 VAC single-phase 2HP motor draws about 10 amps. A 480 VAC 2HP three-phase motor only draws about 6 amps.
How many current needed for the starting of a 5 horse power single phase motor?
120 volt
Can you replace a three phase motor 3 Hp RPM 1420 with a single phase motor for a planer?
Probably not. The single phase three horse power motor will be much larger in physical size than its three phase counterpart, and will probably not fit.
What would be the horse power required in a 3-phase motor to replace a .5 horsepower single phase motor.?
You still need the same horsepower. The advantage of the three-phase motor is that it will draw lower current.
Why is my single phase induction motor drawing to many amps?
I have a single phase induction motor. It draws 8 amps on start up and climbs to 14-15 amps when I put a load on it. When I don't have a load it runs at 1 and climbs to 2-3 amps. It is normal operation for this motor to run at the lower number of amps with a load. But I don't know what is wrong.
Why can a run capacitor with a single phase motor remain in circuit after the motor starts?
A run capacitor is used to improve the efficiency and power factor of a single-phase motor by providing a phase shift to the auxiliary winding. Once the motor is running, the capacitor helps maintain a steady motor speed and performance. It remains in the circuit to assist in the motor's operation.
Which calble use single 1 hp motor?
Motors with same horse-powers have different full load amps when operating. To calculate the size of wire to supply the motor feeder the voltage or current of the motor has to be known.
Difference between eff1 and eff 2 motors?
EFF1 is a high efficiency motor. EFF2 is a standard efficiency motor.
